The booth at E3 was meant to keep people interested in the game and to show off with the engine and that was exactly the reason why Vanguard was shown behind closed doors. Next year the game should be a lot closer to release and they’ve promised to have some real gameplay to show off with but what I can tell you is that if you want to picture Vanguard’s surroundings, just think of the static pictures in Myst being brought to life and being completely interactive. That’s how good Vanguard looks already.
Let’s just hope the rest of the game will become just as good by the time of release.